6 Jan
2019
6 Jan
'19
5:01 p.m.
On Jan 5, 2019, at 12:58 PM, Fritz Mueller <fritzm
at fritzm.org> wrote:
I did get some MACRO CRC-16 sub-routines coded up last night while waiting for various
transfers, so I think I?ll go ahead and finish up the standalone CRC dumper utility
today.
Lastly, a 5V-tolerant USB FIFO breakout board is supposed to show up in the mails today.
If that works out as simply as I hope to interface with a DR11-C, I should have a much
better way to blast bits on and off the machine soon.
Okay, finished up the standalone CRC utility, and verified (to very long odds) byte
identical contents between reading the physical pack on the machine and reading the
downloaded pack under SIMH. And that image doesn?t boot on real HW, but works under
SIMH.
I?ll post the CRC utility code up on my '11/45 project blog
(http://fritzm.github.io/category/pdp-11.html) when I do a write-up later tonight, in case
anybody else is interested in it.
So, I?m left with something probably odd with my HW tripping up RSTS but not being caught
by MAINDECs :-( I think I?ll switch gears for a bit and work on the USB FIFO to DR11-C
hack, since that will help make further experimentation much faster in general.
cheers,
--FritzM.